The Brazilian has become the latest at the Santiago Bernabeu to approve the winger's proposed move to the Spanish capital.
Talks between the two clubs reportedly began on Wednesday over the proposed 115 million euro transfer of the Wales international, with coach Carlo Ancelotti confirming he hoped for a speedy resolution to the proposed deal.
Now, following Iker Casillas and Sergio Ramos, Kaka has become the latest player from Madrid's squad to praise the 24-year-old Bale.
"He's a very, very good player," Kaka told Sky Sports News. "If he comes to Madrid he will be welcomed.
"He's an amazing player with lots of technical ability, skills and tricks. We will be very happy if he comes.”